ATEi was the FIRST ever to machine serrations into a semi-auto slide for the purpose of single hand manipulations on May 4, 2010. All others copied and followed us. Top Slide Serrations for single hand manipulations were developed in partnership with Steve Fisher (former owner of MDFI and lead instructor for Magpul Dynamics now owner of Sentinel Concepts). ATEi Top Slide Serrations are a uni-directional set of curving edges machined into the slide of the gun. They perform much like the propulsion mechanism of scales on snakes or fish.

ATEi Top Slide Serrations are precise and unique features that are machined into a slide to improve performance and make it perfect for the user. Top Slide Serrations improve single-handed manipulation when situations are at their worst. With ATEi Top Slide Serrations a shooter will be able to safely, effectively and efficiently rack the slide to get the gun functioning.

The fundamentals of combat shooting are weapon manipulations and control. For single-handed manipulations of the pistol’s slide, Serrations grab onto your clothing, belt, holster, door jamb, a bad guys forehead or any available surface or edges. ATEi Top Slide Serrations allow shooters to control the weapon in expected and unexpected situations because reality is never what you imagined it to be in a gunfight.

Press checks! When you unload a weapon you make a hundred percent sure it is unloaded. Therefore, when you load a weapon you must make a hundred percent sure it is loaded.

ATEi Enhanced Glock Serrations provide extreme positive two-handed operation of the slide. Sweaty, muddy or bloody you must be able to operate the slide. When confronted with viscous materials such as sweat, water, oils or blood this control is vital. Enhanced Serrations allow a shooter to keep their weapon system running and win the fight.

“Sure, you can use your notched rear sight because it “always” works, on a Sunny 80 degree square range. But if you’ve fallen and broken your wrist – you’ve been shot in the hand – you’re holding your 2 year old child and you’re holding the bad guy back by the neck. You’re in a gun fight for your LIFE and now your gun just stopped working. You might be able to hit that small spot on another small spot to operate the slide and fix a malfunction and you may not,” – Doug Holloway of ATEi.

There are no issues of comfort when carrying a weapon with Serrations machined into the top of the slide. The holster separates contact of the body to the weapon. Those that run more open carriers that expose more of the pistol have reported no discernible differences.

RMR sights provide many advantages over the common front and rear (three point target system) sights of today’s pistols. By securely mounting the RMR into the pistol’s slide you have both a rigid mounting point running the entire length of the RMR creating a solid fighting platform as well as a two point targeting system. These sights support faster sight acquisition, as well as supreme accuracy against targets at longer distances. The RMR window display provides an excellent surface for charging the pistol. This becomes extremely important if circumstances dictate the dire need of one handed manipulations.

If you are having an RMR installed on your slide you will need to send in your slide, the RMR you would like installed and a completed work order form.

Your work order form should show the request for slide milling for RMR installation, where the rear dovetail should be in relation to the RMR (in front or behind the RMR), if refinishing is needed, if suppressor height sights are included or needed.  If no refinishing or sights are needed, please make a note on the work order form to avoid confusion.

The default for a Glock slide is to use the factory dovetail which puts the rear sight behind the RMR.  If  you have an M&P slide you cannot use the factory dovetail and you will need to have a new dovetail milled either in front of or behind the RMR to use the rear sight.

No, ATEi uses a different screw from those included with the RMR when it was purchased.  When you receive your slide with the mounted RMR, you should have an extra set of screws.

Yes, if the sights are not suppressor height sights, they will not co-witness with your RMR.

If new sights are purchased and installed by ATEi, the sights that were received on the slide will be returned with the slide unless otherwise noted on the work order form.

At ATEi, we utilize two professional level OEM quality finishes: “Salt Bath Nitride QPQ” and “Nickle Boron”.

Salt Bath Ferritic Nitrocarburizing results in a tough, black, slightly flat finish.
Major firearm manufacturers use the same process for their pistol slides and have named their processes Tennifer – Glock and Melonite – Smith & Wesson.

Nickle Boron or “NiB” is a very tough, lubricious, wear resistant, silver, electrolysis applied coating.

When sending in your slide or pistol for modification the box should contain the slide or pistol and a completed work order form.

If you are having machining done to your slide you would send in only your slide. Please keep the barrel and recoil assembly. You may leave your sights (and channel liner if Glock) and ATEi can remove and reinstall them.

M&P 9 2.0 modifications offered differ from the regular M&P 9 model. There are dimensional differences in the M&P 9 2.0 slide which require new programs to be developed for the side and top porting.  Once developed and available, an announcement will be made.   Full and Half Top Serrations, RMR install, regular trigger job and refinishing are the only slide modifications available at this time for the M&P 9 2.0.   A regular trigger job (sear install and radius and polish the safety plunger) is offered, but the full target trigger job is not available at this time.   Because the slide already has front side cocking serrations, this modification is not available.

We currently offer slide milling for the installation of the following optics manufacturers: Trijicon RMR, Deltapoint Pro, Vortex Venom, Vortex Viper, Doctor, J Point, Burris Fast Fire and Shield.

Slide milling for the installation of a Mini Red Dot optic is available for the following slide manufacturers:  S&W (M&P model), Glock, Sig (not all), FN and 1911.  Mini Red Dot installation is not offered for the Shield, Glock 42 or Glock 43.

We do not offer milling for or install of a mini red dot optic on the new M&P 2.0 with the chamber indicator at the top rear of the slide.

Sometimes the crimped in front sights are not salvageable and cannot be used again once removed. 

Through the roll marks– The roll marks on the left side of the slide (Glock <model #> and Austria) are cut through to add the serrations on the front side of the slide. There may be fragments or parts of the numbers/letters left behind that may be visible.

Around the roll marks– The serrations are added around the roll marks leaving all the letters and numbers intact.

Through the roll marks, remove remnants– The remnants of the letters/numbers that were left behind are removed by machining the left serrations on the side of the slide only.

The cost is different for slide milling for a Mini Red Dot optic on some slides because there is a void (empty space) where a screw would need to be in order to mount the optic to the slide.  When there is a void, a plug would need to be inserted and the slide welded.  The additional cost is our cost for sending it to and from welding as well as the welding itself.  The slides that would require the welding are Glock 17L, 24, 41 & Sig 320 (Full Size) & Beretta APX.

NOTICE: Purchaser understands and acknowledges that the customization services provided by ATEi are to stock firearms pre-purchased from the underlying manufacture, and are being provided without the original manufacturers authorization or endorsement.